MP 1,1-5,1 I’m stuck.

[Phuggly]

I upgraded to opencore lp 0.9.8. I have Mojave installed on a super slow 1 tb hdd, and when I boot the drive for opencore into Mojave from the boot screen, it goes all the way with the progress bar and then freezes. I want to switch my Mojave on a ssd, but I’m having trouble doing so even though I have a rx580 4gb card installed. Should i just get a 6600xt or a 5600xt and flash it? I just want the boot screen to work since it isn’t working with my current card. Also have a default Mac video card that isn’t metal. Anyways, any help is appreciate!

 

[tsialex]

Should i just get a 6600xt or a 5600xt and flash it?

RX 6600XT requires Monterey, 5600XT requires Catalina. None work with Mojave.

I just want the boot screen to work since it isn’t working with my current card.

EnableGop injection to the Mac Pro BootROM or the GPU firmware solves that, if the GPU firmware is still the factory one.

 

[sfalatko]

I upgraded to opencore lp 0.9.8. I have Mojave installed on a super slow 1 tb hdd, and when I boot the drive for opencore into Mojave from the boot screen, it goes all the way with the progress bar and then freezes. I want to switch my Mojave on a ssd, but I’m having trouble doing so even though I have a rx580 4gb card installed. Should i just get a 6600xt or a 5600xt and flash it? I just want the boot screen to work since it isn’t working with my current card. Also have a default Mac video card that isn’t metal. Anyways, any help is appreciate!

I am curious as to why you are using OpenCore with Mojave - it is natively supported on the cMP. Can you boot without it?

 

[Phuggly]

I am curious as to why you are using OpenCore with Mojave - it is natively supported on the cMP. Can you boot without it?

I meant Martin L’s open core, sorry I got them confused. Also, I bought this Mac Pro 5,1 and it had Mojave installed on it already. That’s why I’m confused a little bit. I installed the open core and stopped because MSS(Mac Sound Solutions) said that you needed the upgraded Wi-F/Bluetooth(now in my system) antenna for Monterey to work. I haven’t installed Monterey yet because I’m still unsure if my graphics card or my system is ****ed up because when I do have the 580 plugged in and on the boot screen, I load Mojave and it gets all the way to the end, and it gets frozen. So do I need to enable gop with my boot rom or the bios on the card, since it’s not working for me currently? Would I have to take the card out and plug it into a PC and see what the current BIOs is?

 

[Phuggly]

RX 6600XT requires Monterey, 5600XT requires Catalina. None work with Mojave.



EnableGop injection to the Mac Pro BootROM or the GPU firmware solves that, if the GPU firmware is still the factory one.

Which card is the easiest to flash, out of every AMD card there is? I was going to upgrade to a better one anyways, but I got this card for $30 and was just going to see if it could be used in the meantime.

 

[tsialex]

I meant Martin L’s open core, sorry I got them confused. Also, I bought this Mac Pro 5,1 and it had Mojave installed on it already. That’s why I’m confused a little bit. I installed the open core and stopped because MSS(Mac Sound Solutions) said that you needed the upgraded Wi-F/Bluetooth(now in my system) antenna for Monterey to work. I haven’t installed Monterey yet because I’m still unsure if my graphics card or my system is ****ed up because when I do have the 580 plugged in and on the boot screen, I load Mojave and it gets all the way to the end, and it gets frozen. So do I need to enable gop with my boot rom or the bios on the card, since it’s not working for me currently? Would I have to take the card out and plug it into a PC and see what the current BIOs is?

You are missing a lot of steps here and jumping around, this is a recipe for disaster.

Diagnose your Mac Pro first - get it working with an AppleOEM GPU like GT120 or HD 5770 and High Sierra, run AHT/ASD and only after you get it perfectly working and all the required maintenance done, like replacing the RTC battery with a real Panasonic BR2032, cleaning all the nooks and crannies and deoxidizing each contact, you'll think about unsupported macOS releases and any hardware upgrades like the GPU/AirPort.

Which card is the easiest to flash, out of every AMD card there is? I was going to upgrade to a better one anyways, but I got this card for $30 and was just going to see if it could be used in the meantime.

Btw, you don't flash GPUs for Mac usage anymore for years, since OpenCore was developed. You'll use the with the factory firmware (real important that the GPU have the factory firmware, any mods to the GPU firmware make the cryptographic signing of the firmware invalid and the MacPro firmware will completely ignore the GPU at POST - no pre-boot configuration support at all) + EnableGop (injected to the MacPro BootROM or to the GPU firmware).

 

[Phuggly]

You are missing a lot of steps here and jumping around, this is a recipe for disaster.

Diagnose your Mac Pro first - get it working with an AppleOEM GPU like GT120 or HD 5770 and High Sierra, run AHT/ASD and only after you get it perfectly working and all the required maintenance done, like replacing the RTC battery with a real Panasonic BR2032, cleaning all the nooks and crannies and deoxidizing each contact, you'll think about unsupported macOS releases and any hardware upgrades like the GPU/AirPort.



Btw, you don't flash GPUs for Mac usage anymore for years, since OpenCore was developed. You'll use the with the factory firmware (real important that the GPU have the factory firmware, any mods to the GPU firmware make the cryptographic signing of the firmware invalid and the MacPro firmware will completely ignore the GPU at POST - no pre-boot configuration support at all) + EnableGop (injected to the MacPro BootROM or to the GPU firmware).

It works with an apple oem gpu(5770). Its just not running High Sierra, it’s running Mojave on what appears to be a dying slow hard drive, and when I saw that I couldn’t install it to a ssd because I didn’t have a Metal GPU, i went down the stupid rabbit hole of all this other ****. So do you want me to pull the hard drive that has Mojave installed, pull the SSD that has opencore installled, and just install high sierra from a usb bootable drive on a ssd? Also, it’s pretty clean in there. There isn’t any dust, and I’m not seeing any corrosion. i will however go get a new battery. I have already upgraded the airport/wifi card with this one:https://www.intriguingindustries.co.uk/product/macpro-4-1-and-5-1-wifi-and-bt-upgrade-kit/

My apologies on being confused about the gpus, it seems that I misinformed myself when it came to that from seeing all the posts about people flashing their 6600xt or 6800xt and people not mentioning that you don’t even need to do that anymore.

 

[tsialex]

So do you want me to pull the hard drive that has Mojave installed, pull the SSD that has opencore installled, and just install high sierra from a usb bootable drive on a ssd?

Yes.

After you get a replacement Panasonic BR2032 installed, remove any disks with OC ESP, do a multiple NVRAM reset, install High Sierra from a createinstallmedia USB installer. After that run AHT/ASD.

Start with unsupported macOS releases only after with a perfectly working Mac Pro or you will enter a rabbit hole that you won't get away - is practically impossible to diagnose a Mac Pro running unsupported macOS releases you will never know is a problem is hardware/software/hacking related.

My apologies on being confused about the gpus, it seems that I misinformed myself when it came to that from seeing all the posts about people flashing their 6600xt or 6800xt and people not mentioning that you don’t even need to do that anymore.

You need to patch a bug with all AMD RX 6xxx GPUs for it to work with a MacPro5,1 with a PC, but you don't need to flash it for having pre-boot configuration support.